Herbicidal composition comprising cinmethylin and specific inhibitors of protoporphyrinogen oxidase

Abstract

The present invention relates to a herbicidal composition comprising specific inhibitors of protoporphyrinogen oxidase (PPO inhibitors) selected from flumioxazin and sulfentrazone. The invention also relates to methods and uses for controlling undesirable vegetation, in particular in crops.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 15 / 740,405, filed Dec. 28, 2017, the entire contents of which are hereby incorporated herein by reference. U.S. application Ser. No. 15 / 740,405 is a National Stage Application of International Application No. PCT / EP2016 / 066006, filed Jul. 6, 2016, which claims the benefit of U.S. Provisional Application No. 62 / 190,777, filed Jul. 10, 2015, the entire contents of each of which are hereby incorporated herein by reference. U.S. application Ser. No. 15 / 740,405 also claims priority under 35 U.S.C. § 119 to European Application No. 15191724.2, filed Oct. 27, 2015, the entire contents of which are hereby incorporated herein by reference.[0002]The present invention relates to a herbicidal composition comprising specific inhibitors of protoporphyrinogen oxidase (PPO inhibitors) selected from flumioxazin and sulfentrazone. The invention also relates to methods and uses for controlling ...

AI Technical Summary

Benefits of technology

The present invention aims to provide herbicidal compositions with improved herbicidal activity against harmful plants and increased compatibility with useful plants, such as crop plants. The herbicidal compositions should provide weed control comparable to individual compounds with reduced application rates, or significantly enhanced weed control with application rates comparable to the individual compounds. Additionally, the herbicidal compositions should maintain or improve weed control while showing less damage to the crop compared to the individual compounds.

Problems solved by technology

Frequently, this cannot be achieved using a single herbicidally active compound.

For example, herbicide resistance within weeds, in particular grass weeds such as, for example, Alopecurus myosuroides (ALOMY), Apera spica-venti (APESV) or Lolium species (LOLSS) has become a major concern for farmers, resulting in dramatic weed control problems, for example in cereal crops.

Thus, PPO inhibitors impair the production of chlorophyll and heme in plants.

In addition, the inhibition of PPO results in forming highly reactive molecules that attack and destroy lipids and protein membranes.

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